Python Singletons: Exploring 3 Best Practices for Implementation
In software design, a singleton is a creational design pattern that ensures a class has only one instance and provides a global point of access to that instance.
For instance, in an AI project, a singleton model manager ensures all modules share the same model instance, ensuring consistency and efficient management of AI models and their configurations.
Why Singleton is Helpful
The singleton pattern offers several benefits:
- Resource Management: It helps manage resources that are shared across the application, such as database connections, file systems, or hardware devices. By ensuring a single instance, it prevents resource contention and misuse.
- Global Access: It provides a single, centralized point of access to the instance, allowing other objects and components to easily access its functionality without the need to instantiate it multiple times.
- State Maintenance: It allows the singleton instance to maintain state that is globally accessible and consistent across the application, ensuring that changes made to the singleton state are reflected throughout.
Common Usages
- Logger Instances: Logging is a common requirement in…
